Hi all I hope someone can help shed some light regarding the servicing requirements of our '04 Corsa 1.2 Design. The service manual says the petrol engine is an ECO-FLEX system which tells the owner when the service is due, or it is every 2 years or 20,000 miles, if they come first. We bought the car last August with 2k miles on the clock. The salesman noted on our MOT and service reminder sheet that our next service would be in March 2006 as we had already worked out that we wouldn't be near the 20k limit before then. The InSP indicator that comes on when we start the car has always displayed '0'. Can someone explain how that works, does it count down the mileage due to the next service when it is within 9999 miles? The confusion revealed itself when we received a reminder from the supplying dealer informing us that the car was due for its service this month. I contacted the service department and asked why they sent out a reminder after only one year (admin error maybe) and was told that it depends on how the car was programmed when it left the factory - either it is 1 year/20k, or 2 years/20k. I explained that the salesman had told us (2 years/20k), he confirmed the name of the salesman and said that he must be correct and it is 2 years/20k and to ignore the service reminder. What are peoples views on 2 year intervals between services and the oil change? I am not sure how long we plan to keep the car and am weighing up the pro's and con's of having a intermediate oil & filter change between each 2 year service. I know the pro's, it is the quoted £60-£75 that is the biggest con! Will getting an independent to do an oil change void the warranty, Vauxhall's or Network Q's? Thanks for taking the time to read this post and I look forward to any helpful replies. Trevor